Bell 214 accident near Dongducheon, Kr, June 13, 2017
On June 13, 2017 at about 6:10 pm local time, a Bell 214 (helicopter), registered HL9157, was substantially damaged in an accident during approach near Dongducheon. 2 people were seriously injured.
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The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 13, 2017 · about 6:10 pm local time
- Place
- Dongducheon, Kr
- Type
- Accident
- Injuries
- 2 people were seriously injured.
- Weather
- not recorded
- Aircraft
- Bell 214 B · all 214s on the register
- Registration
- HL9157 · no longer on the register · serial 28006
- Damage
- Substantial damage
- Flight
- Flight
The NTSB's narrative preliminary · quoted from the NTSB record
On June 13, 2017, about 1810 local time, a Republic of Korea registered Bell 214B helicopter, HL9157, operated by UB Air, impacted remote mountainous terrain about 3 miles northeast of Dongducheon, Republic of Korea, during the approach to a drop zone while conducting an external load operation. The helicopter sustained substantial damage and the 2 pilots received serious injuries. The investigation is under the jurisdiction of the Aviation and Railway Accident Investigation Board, Republic of Korea. As the state of manufacture of the helicopter and the engine, the National Transportation Safety Board has designated a US accredited representative to assist the Aviation and Railway Accident Investigation Board. Further information pertaining to this accident may be obtained from: Aviation and Railway Accident Investigation Board Ministry of Land, Infrastructure and Transport #94 Dasom-Ro 2 Sejong Self-Governing City, 339-012 Republic of Korea Phone: +82 (44) 201-5447 Fax: +82 (44) 201-5698 http://araib.molit.go.kr/intro.do
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Unknown or undetermined during approach defining event
The aircraft
- Landing gear: fixed
- Not recorded
Weather at the time
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flig | 2 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number ANC17WA031.